Vocabulary 7 Quiz

A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products

• molecular equation
• chemical equation
• atomic structure
• chemical change

Tags

NGSS.MS-PS1-2

A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction.

• exponent
• coefficient
• subscript
• variable

A number written slightly below and to the right of a chemical symbol that shows how many atoms of an element are in a compound.

• subscript
• exponent
• superscript
• coefficient

A substance made up of atoms of two or more different elements joined by chemical bonds

• mixture
• element
• solution
• compound

Tags

NGSS.MS-PS1-1

a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.

• atom
• mixture

• compound
• molecule

Tags

NGSS.MS-PS1-1

A substance produced in a chemical reaction

• reactant
• catalyst
• finishing substance

• product

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A chemical substance that is present at the start of a chemical reaction

• product
• catalyst
• inhibitor
• reactant

Tags

NGSS.MS-PS1-1

states that mass cannot be created or destroyed during chemical/physical changes and chemical reactions.

• law of conservation of mass
• principle of mass preservation
• law of matter

• rule of matter conservation

Tags

NGSS.MS-PS1-5